I have searched and searched these forums and google and have not yet found a working solution.

Here is my case. I have a Toshiba Satellite Pro 6000 laptop. I just freshly loaded Gentoo on the machine. It has previously been loaded and run with Libranet without any problems. I am currently using the new 2.6 kernel.

Whenever ACPI support is enabled I end up with a process 'events/0' that takes near 100% of the cpu, as well as the cpu fan going crazy (ie comes on full speed and doesn't stop till I turn the notebook off). I have disabled all ACPI options except the basic support and that makes no difference. I have disabled APIC support (don't know that it makes a diff). I have also disabled cpu frequency scaling just to make sure. If I completely remove ACPI support from the kernel then the problem goes away. So I know the problem revolves around ACPI but I can't figure out how to fix it.

I have also tried using the mm sources which includes the latest version of the ACPI stuff, to no avail. I also ran across a thread that indicated I should try to comment out some code in the evrgnini.c file, but that also didn't do anything.

Anyone else having a similiar problem and fixed it?

I'd remove ACPI support but when I do then I can't get the nic to work. catch-22 huh

Whenever ACPI support is enabled I end up with a process 'events/0' that takes near 100% of the cpu, as well as the cpu fan going crazy (ie comes on full speed and doesn't stop till I turn the notebook off).

The only hint, what i could give is:
I had similar problemes with gentoo-sources 2.4.20, with vanilla 2.4.22/2.4.23 acpi run fine.
But with 2.6.0 i had no problems with acpi.

I tried upgrading the BIOS this morning and that didn't fix anything. Also I have already tried the trick with commenting out that code. Note that I didn't find that exact line but I did find something very close ( one of the parameter names was differert).

Still no luck with either attempt. I'm starting to wonder if maybe my laptop requries a custom dsdt for it. Unfortunently I have not been able to find one if it does exist. Latter today I will probably make a post to the acpi mailing lists and see if anyone out there might be more familiar with the problem.

I'll be watching this thread and if I find out anything I will post here.

My guess is that it's not a kernel problem, it's a problem with your acpi scripts. (If you've got a fully populated /proc/acpi directory, then your kernel is doing what it should!)

What do you have in /etc/acpi? Keep in mind that if you borrow a script from someone else you'll almost certainly have to tailor it to your particular /proc/acpi directory tree.

I had the same problem the first time I tried to blindly run the (fantastic) scripts in this forum. I had to customize the directories (including the ones that are in bash syntax). Here's an important one: make sure that the shell files are chmoded to be executable. Similarly, make sure that any files referenced by files in the events dir actually exist!